Publicado

2010-07-01

COMPORTAMIENTO CINÉTICO DE LA HIDROGENACIÓN DE FURFURAL SOBRE CATALIZADORES DE Ir SOPORTADOS EN TiO₂

Palabras clave:

Furfural, hydrogenation, SMSI effect, kinetic study. (es)

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Autores/as

  • HUGO ROJAS Escuela de Ciencias Químicas, Facultad de Ciencias, Grupo de Catálisis (GCUPTC), Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
  • JOSÉ J. MARTÍNEZ Escuela de Ciencias Químicas, Facultad de Ciencias, Grupo de Catálisis (GCUPTC), Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
  • PATRICIO REYES Facultad de Ciencias Químicas, Universidad de Concepción, Chile
The kinetics of the liquidphase hydrogenation of furfuraldehyde to furfuryl alcohol over Ir catalysts supported over TiO₂ was studied in the temperature range of 323 to 373 K. The effect of furfural concentration, hydrogen pressure and the solvent effect were also studied. A high selectivity towards furfuryl alcohol was demonstrated. Initial rates describes the order global of the reaction. The experimental data could also be explained using the Langmuir-Hinshelwood model with of a single-site with dissociative adsorption of hydrogen and the surface reaction as the rate-controlling step provided the best fit of the experimental data.

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